[hyperthesis]

Read of a study years ago that had postmenopausal wpmen do weight training - giving a dramatic 40% increase in bone density in 6 weeks IIRC the details.

It's not that frail people need to be inactive, but that inactivity causes frailty.

[alecst]

I'd like to see that, the studies I've seen show around 1-5% per year.

[scott_w]

Is that trained or untrained? "Newbie gains" is a real thing, mostly caused by people going from a negative health state to a "normal" health state (or inactivity to basic activity).

I can see a rapid increase in untrained people but more marginal increases in trained people because of this.